The discriminant of the quadratic equation 3x2−4√3x+4=0 is
A
D=96
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B
D=0
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C
D=−2
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D
D=4
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Solution
The correct option is BD=0 Given, 3x2−4√3x+4=0
Comparing the equation with ax2+bx+c=0, we get a=3,b=−4√3,c=4
We know the discriminant is D=b2−4ac⇒D=(−4√3)2−4×3×4∴D=0